Spectrophotometric Study of the Complexation of Indium(III) With the α-Diketone Bis(4-Phenyl-3-Thiosemicarbazones) Derived From Glyoxal, Biacetyl and Methylglyoxal
作者:
M.A. Herrador,
A.M. Jimé,
A.G. Asuero,
期刊:
Analytical Letters
(Taylor Available online 1988)
卷期:
Volume 21,
issue 4
页码: 621-632
ISSN:0003-2719
年代: 1988
DOI:10.1080/00032718808081242
出版商: Taylor & Francis Group
关键词: α-diketone bis(4-phenyl-3-thiosemicarbazone);indium determination;spectrophotometry
数据来源: Taylor
摘要:
Indium(III) reacts with α-diketone bisphenylthiosemicarbazones derived from glyoxal, biacetyl and methylglyoxal to form 1:1 and 1:2 (In: reagent) complexes in acid and basic medium, respectively. The effect of experimental variables was studied in detail on the acid site, and a new method for the spectrophotometric determination of indium(III) with meth-ylglyoxal bis(4-phenyl-3-thiosemicarbazone) (MGBPT) is proposed. The yellow 1:1 In-MGBPT complex is formed at pH 3.5–6 in a solution containing a 60 % V/V of dimethylforrnamide. The nature of the complex (ε = 27,100 1 mol−1cm−1at 465 mm) and the effect of interferences were studied.
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